I suppose you are right about the fog, but you're wrong about the rain. At least in the sense that it does not have a unique smell. I suppose it could however smell like any foreign particles it might be carrying.

Rain has no smell. The rain smell is always there, but you just don't normally smell it. The reason you smell it when rain is close or falling is because your sense of smell is increased with moisture in the air. That's why farts smell so much worse in the shower!

I can go about 30 miles from me to see the snow, but it's never happens, narrow road, gas, stupid drivers so I just stay home. this is my ocean oops this is actually fishing for Salmon on the Rogue river, going on right now